CN102179536B - Cutting tool for high-speed cutting - Google Patents
Cutting tool for high-speed cutting Download PDFInfo
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- CN102179536B CN102179536B CN 201110100681 CN201110100681A CN102179536B CN 102179536 B CN102179536 B CN 102179536B CN 201110100681 CN201110100681 CN 201110100681 CN 201110100681 A CN201110100681 A CN 201110100681A CN 102179536 B CN102179536 B CN 102179536B
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- securing member
- cutter
- cutting
- voussoir
- cutting tool
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Abstract
The invention discloses a cutting tool for high-speed cutting, which comprises a cutter body, wherein the cutter body is provided with at least one group of cutter grooves of which the sections are wedged; holders, wedge blocks and fastening pieces are arranged in the cutter grooves; the wedge blocks are provided with holder accommodating grooves of which the openings face the bottom surfaces of the cutter grooves, and fastening pieces adjusting holes corresponding to the heads of the fastening pieces; the holders are clamped in the holder accommodating grooves; the fastening pieces are in threaded connection with the holders; the heads of the fastening pieces are pressed against the bottom surfaces of the holder accommodating grooves; and under the pressing action of the fastening pieces, the wedge blocks and the cutter grooves are in wedged fit, and the holders are pressed and fixed on the bottom surfaces of the cutter grooves. The cutting tool for high-speed cutting has the advantages of simple and compact structure, simple manufacture, low production cost and high safety factor.
Description
Technical field
The present invention relates to the metal cutting manufacture field, relate in particular to a kind of cutting tool for high-speed cutting.
Background technology
In rotation class cutting tool working angles, high-speed cutting (cutting speed is between 1000m/min～5000m/min) can improve greatly working (machining) efficiency, improve machined surface quality.Because ordinary cutting tool material (being generally steel) density is larger, high-speed cutting adds man-hour, and especially when the external diameter of cutting tool surpassed Φ 100mm, the main shaft gyration when cutter has strengthened the lathe starting was greatly loaded.In order to reduce machine tool chief axis revolution load, general Bian with the less aluminium alloy of density as cutter material, but the bending strength of aluminium alloy only has 1/4～1/2 of ordinary cutting tool material, and during high-speed cutting, the cutting edge at most peripheral position and periphery clamp part, and very large centrifugal force can occur, and utilizes the internal thread that studs with on cutter hub to clamp cutter holder, can produce very large axial force and revolution centrifugal force, due to stress fatigue, screw thread is easier to breakage.this type of high speed cutting tool is generally by cutter hub, cutter holder, voussoir and securing member form, cutter hub is provided with at least one group of cutter groove, cutter holder and voussoir are placed in the cutter groove, be provided with screwed hole on voussoir, securing member is installed in screwed hole and cutter holder is compressed, because voussoir thickness is generally thinner, effective contact length of securing member and screwed hole is shorter, securing member may get loose in high-speed machining process, simultaneously, because effective contact area of securing member and cutter holder is little, the long-term use is easier to cause endurance failure, when the screw thread deficiency provides the thrust of securing member and gets loose, securing member will fly out at a high speed under centrifugal action, safety to the staff causes larger threat.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of simple and compact for structure, be convenient to processing and fabricating, production cost is low, safety coefficient is high is used for the cutting tool of high-speed cutting.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of cutting tool for high-speed cutting, comprise cutter hub, described cutter hub is provided with the cutter groove that at least one group of cross section is wedge shape, be equiped with cutter holder, voussoir and securing member in described cutter groove, described voussoir is provided with opening towards the cutter holder storage tank of cutter groove bottom, described cutter holder is placed in the cutter holder storage tank, described securing member is threaded with cutter holder, the head of securing member pushes in the cutter groove bottom, under the effect that pushes of securing member, cutter holder promotes voussoir and cutter slot wedge tight fit, and cutter holder is secured in a press on the bottom surface of cutter holder storage tank.
Described cutter hub is provided with the first securing member adjustment hole that leads to the cutter groove bottom, and the position of described the first securing member adjustment hole is corresponding with the position of fastener head.
The afterbody of described securing member is provided with driving hole, and described voussoir is provided with the second securing member adjustment hole, and the position of described the second securing member adjustment hole is corresponding with the position of the driving hole of securing member.
Described securing member is provided with 1～3, and the quantity of described the first securing member adjustment hole and the second securing member adjustment hole is all corresponding with the quantity of described securing member.
The two side of described cutter groove is and the two friction tight wedge surfaces of lateral wall wedge of voussoir that described two side is symmetrical arranged.
The angle of described two side and the axis of symmetry is β, 2.5 °≤β≤7.5 °.
Leave the gap between the bottom surface of described voussoir and cutter groove.
Described securing member is Allen bolt.
Compared with prior art, the invention has the advantages that:
Cutting tool for high-speed cutting of the present invention, be threaded with cutter holder by securing member, the head of securing member pushes in the bottom surface of cutter groove, under the effect that pushes of securing member, voussoir and cutter slot wedge tight fit, cutter holder is secured in a press on the bottom surface of cutter groove, effectively cutter holder, voussoir is clamped on cutter hub, can increase simultaneously the length that is threaded of securing member, thereby improve securing member to the chucking power of cutter holder, voussoir; The head of securing member is blocked by cutter holder, can prevent effectively that securing member is flown out by centrifugal forces affect with the cutter hub High Rotation Speed time, protection operating personnel's safety.Can insert securing member degree of tightness spanner from the securing member adjustment hole on voussoir, cutter hub, easy and convenient adjusting securing member, convenient to operation.Cutting tool structure of the present invention is simple compact, be convenient to processing and fabricating, production cost is low, easy to loading and unloading, safety coefficient is high.
Description of drawings
Fig. 1 is perspective view of the present invention;
Fig. 2 is main TV structure schematic diagram of the present invention;
Fig. 3 is the perspective view of cutter holder of the present invention;
Fig. 4 is the perspective view of voussoir of the present invention;
Fig. 5 is the end face structure schematic diagram of voussoir of the present invention;
Fig. 6 is the A-A cutaway view Amplified image of Fig. 2;
Fig. 7 is the B-B cutaway view Amplified image of Fig. 2.
In figure, each label represents:
1, cutter hub; 2, cutter holder; 3, voussoir; 4, securing member; 5, gap; 6, cutting tip; 21, cutter groove; 211, sidewall; 22, screwed hole; 31, cutter holder storage tank; 32, the first securing member adjustment hole; 33, lateral wall; 34, the second securing member adjustment hole; 41, head.
The specific embodiment
Fig. 1 to Fig. 7 shows a kind of cutting tool embodiment for high-speed cutting of invention, this cutting tool comprises cutter hub 1, cutter hub 1 is provided with the cutter groove 21 that at least one group of cross section is wedge shape, the quantity of cutter groove 21 can be decided according to concrete cutting situation, the present embodiment only is provided with one group of cutter groove 21, be equiped with cutter holder 2 in this cutter groove 21, voussoir 3 and securing member 4, voussoir 3 is provided with opening towards the cutter holder storage tank 31 of cutter groove 21 bottom surfaces, cutter holder 2 is placed in cutter holder storage tank 31, be equiped with cutting tip 6 on cutter holder 2, and be provided with the screwed hole corresponding with securing member 4 22, securing member 4 is threadedly connected in the screwed hole 22 of cutter holder 2, the head 41 of securing member 4 pushes in cutter groove 21 bottom surfaces, under the effect that pushes of securing member 4, cutter holder 2 promotes voussoir 3 and coordinates with 21 wedgings of cutter groove, cutter holder 2 is secured in a press on the bottom surface of cutter holder storage tank 31, this structure can be effectively with cutter holder 2, voussoir 3 is clamped on cutter hub 1, can increase simultaneously the length that is threaded of securing member 4, thereby improve chucking power and thrust that 4 pairs of cutter holders 2 of securing member and voussoir 3 form, the head 41 of securing member 4 is subjected to blocking of cutter holder 2, can prevent effectively that securing member 4 is flown out by centrifugal forces affect with cutter hub 1 High Rotation Speed the time, protection operating personnel's safety.Cutting tool of the present invention has been cancelled the structure of machining screw on the voussoir 3 that relatively cutter holder 2 is thinner, makes simple and compact for structurely, stable, is convenient to processing and fabricating, production cost is low, easy to loading and unloading, safety coefficient is high, and can improve the cutting precision of cutting tool in high-speed cutting.
in the present embodiment, cutter hub 1 is provided with the first securing member adjustment hole 32 that leads to cutter groove 21 bottom surfaces, the position of the first securing member adjustment hole 32 is corresponding with the position of securing member 4 heads, the afterbody of securing member 4 is provided with driving hole 42, voussoir 3 is provided with the second securing member adjustment hole 34, the position of the second securing member adjustment hole 34 is corresponding with the position of the driving hole 42 of securing member 4, securing member 4 is selected Allen bolt, driving hole 42 is selected inner hexagonal hole, can insert Allen bolt degree of tightness spanner from the first securing member adjustment hole 32 and the second securing member adjustment hole 34, the degree of tightness of easy and convenient adjusting securing member 4, make the charge and discharge operations of cutter holder 2 convenient and swift.
According to the difference of actual cutter sizes and processing operating mode, securing member 4 can be established 1～3, and the quantity of the first securing member adjustment hole 32 and the second securing member adjustment hole 34 is corresponding with the quantity of securing member 4.In the present embodiment, securing member 4 is provided with two, can effectively improve the surperficial stressing conditions of cutter hub 1 and voussoir 3; The first securing member adjustment hole 32 and the second securing member adjustment hole 34 also are respectively equipped with two, and two the first securing member adjustment holes 32 and two the second securing member adjustment holes 34 are corresponding one by one with the installation site of two securing members 4 respectively.
the two side 211 of cutter groove 21 is the two lateral wall 33 friction tight wedge surfaces of wedge with voussoir 3, when voussoir 3 is out of shape under securing member 4 pushes the effect of power, sidewall 211 and sidewall 33 close contacts, guarantee the assembly precision of cutter holder 2 in cutter groove 21, two side 211 is symmetrical arranged, can guarantee that radial load and tangential force that the sidewall 211 of cutter groove 21 is subject to evenly distribute, two side 211 is β with the angle of the axis of symmetry, 2.5 °≤β≤7.5 °, can effectively adjust the radial load of sidewall 211 and the ratio of tangential force by the size of adjusting angle β, in the present embodiment, two side 211 is 5 ° with the angle β of the axis of symmetry.In the present embodiment, leave gap 5 between the bottom surface of voussoir 3 and cutter groove 21, fast and easy loading and unloading voussoir 3.
Above-mentioned is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Although the present invention discloses as above with preferred embodiment, yet is not to limit the present invention.Any those of ordinary skill in the art in the situation that do not break away from the technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible changes and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all should drop in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to the technology of the present invention essence.
Claims (8)
1. cutting tool that is used for high-speed cutting, comprise cutter hub (1), described cutter hub (1) is provided with the cutter groove (21) that at least one group of cross section is wedge shape, be equiped with cutter holder (2) in described cutter groove (21), voussoir (3) and securing member (4), it is characterized in that: described voussoir (3) is provided with opening towards the cutter holder storage tank (31) of cutter groove (21) bottom surface, described cutter holder (2) is placed in cutter holder storage tank (31), described securing member (4) is threaded with cutter holder (2), the head (41) of securing member (4) pushes in cutter groove (21) bottom surface, under the effect that pushes of securing member (4), cutter holder (2) promotes voussoir (3) and coordinates with cutter groove (21) wedging, cutter holder (2) is secured in a press on the bottom surface of cutter holder storage tank (31), the two side (211) of described cutter groove (21) is the friction tight wedge surface of two lateral walls (33) wedge with voussoir (3), described two side (211) is symmetrical arranged, the cutting speed of described high-speed cutting is between 1000m/min ~ 5000m/min.
2. the cutting tool for high-speed cutting according to claim 1, it is characterized in that: described cutter hub (1) is provided with the first securing member adjustment hole (32) that leads to cutter groove (21) bottom surface, and the position of described the first securing member adjustment hole (32) is corresponding with the position of securing member (4) head.
3. the cutting tool for high-speed cutting according to claim 2, it is characterized in that: the afterbody of described securing member (4) is provided with driving hole (42), described voussoir (3) is provided with the second securing member adjustment hole (34), and the position of described the second securing member adjustment hole (34) is corresponding with the position of the driving hole (42) of securing member (4).
4. the cutting tool for high-speed cutting according to claim 3, it is characterized in that: described securing member (4) is provided with 1～3, and the quantity of described the first securing member adjustment hole (32) and the second securing member adjustment hole (34) is all corresponding with the quantity of described securing member (4).
5. the cutting tool for high-speed cutting according to claim 1 is characterized in that: described two side (211) are β with the angle of the axis of symmetry, 2.5 °≤β≤7.5 °.
6. the described cutting tool for high-speed cutting of any one according to claim 1 to 5, is characterized in that: leave gap (5) between the bottom surface of described voussoir (3) and cutter groove (21).
7. the described cutting tool for high-speed cutting of any one according to claim 1 to 5, it is characterized in that: described securing member (4) is Allen bolt.
8. the cutting tool for high-speed cutting according to claim 6, it is characterized in that: described securing member (4) is Allen bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110100681 CN102179536B (en) | 2011-04-21 | 2011-04-21 | Cutting tool for high-speed cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110100681 CN102179536B (en) | 2011-04-21 | 2011-04-21 | Cutting tool for high-speed cutting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102179536A CN102179536A (en) | 2011-09-14 |
| CN102179536B true CN102179536B (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110100681 Active CN102179536B (en) | 2011-04-21 | 2011-04-21 | Cutting tool for high-speed cutting |
Country Status (1)
| Country | Link |
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| CN (1) | CN102179536B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694921B (en) * | 2016-12-28 | 2019-01-11 | 株洲华锐精密工具股份有限公司 | Tool fixing structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2229112A (en) * | 1939-05-27 | 1941-01-21 | Mccrosky Tool Corp | Inserted blade cutter |
| CN1102146A (en) * | 1993-03-18 | 1995-05-03 | 桑德维克公司 | Milling cutter body |
| CN1324281A (en) * | 1998-10-27 | 2001-11-28 | 桑德维克公司 | Milling tool |
| CN101298105A (en) * | 2008-06-19 | 2008-11-05 | 上海美恩精密工具有限公司 | Rotatable face milling cutter made of superhard material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7708040B2 (en) * | 2004-03-16 | 2010-05-04 | Key Knife, Inc. | High speed planer head |
-
2011
- 2011-04-21 CN CN 201110100681 patent/CN102179536B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2229112A (en) * | 1939-05-27 | 1941-01-21 | Mccrosky Tool Corp | Inserted blade cutter |
| CN1102146A (en) * | 1993-03-18 | 1995-05-03 | 桑德维克公司 | Milling cutter body |
| CN1324281A (en) * | 1998-10-27 | 2001-11-28 | 桑德维克公司 | Milling tool |
| CN101298105A (en) * | 2008-06-19 | 2008-11-05 | 上海美恩精密工具有限公司 | Rotatable face milling cutter made of superhard material |
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| Publication number | Publication date |
|---|---|
| CN102179536A (en) | 2011-09-14 |
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