CN101700583B - Improvement method of indexable aperture knife tool - Google Patents
Improvement method of indexable aperture knife tool Download PDFInfo
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- CN101700583B CN101700583B CN2009102726411A CN200910272641A CN101700583B CN 101700583 B CN101700583 B CN 101700583B CN 2009102726411 A CN2009102726411 A CN 2009102726411A CN 200910272641 A CN200910272641 A CN 200910272641A CN 101700583 B CN101700583 B CN 101700583B
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- blade
- indexable
- knife tool
- cutting edge
- aperture knife
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Abstract
The invention discloses an improvement method of an indexable aperture knife tool and relates to machining field. A matching surface of a carriage saddle inclines with an included angle alpha, and a blade also inclines with the included angle alpha after being installed, so that the sharpest part of the cutting edge of the blade is in contact with machining materials. During the process of machining, the cutting edge of the blade is arranged lower than a machined surface, so that a rear knife surface is not squeezed and the cutting edge is directly used for cutting, thereby improving the sharpness of the blade and achieving an ideal chip-breaking effect; and in real machining, the blade is more durable and can be used more easily, therefore, the production cost is reduced and the working efficiency is improved.
Description
Technical field
The present invention relates to the machined field, especially for improving one's methods of a kind of indexable aperture knife tool of bigger metal material such as plasticity such as processing mild steel etc.
Background technology
In deep hole machining, it is FA aperture knife tool that brill is inhaled in convertible spray at present, and its adopts the cutting edge with drill bit to be divided into a plurality of blades and dismountable design; Drilling pipe input high-pressure coolant outside drilling tool; Drive smear metal and from the chip discharging tube of drill bit, discharge, this processing method is had relatively high expectations to chip breaking, and excessive and long smear metal will make smear metal stop up chip discharging tube; According to the requirement of processing handbook, the length of smear metal should be 1-4 times of its width.The cutting ability performance is very desirable in the deep hole machining of phosphorus content higher (0.3-0.6%), chip breaking ideal in the whole machining process process, and endoporus fineness is at 1.6-2.0.But when processing mild steel (φ 34-φ 55, brill are that the footpath is than more than 1: 30 deeply for S20SX, phosphorus content 0.2%), the often stifled bits of work in-process, length of chip has reached 15-20 times of its width, has prolonged 24 times process time.According to the explanation of processing handbook, the adjustment cutting parameter cutting speed and the amount of feeding still can't be dealt with problems.
Summary of the invention
Technical problem to be solved by this invention provides improving one's methods of a kind of indexable aperture knife tool, can solve the problem of indexable aperture knife tool chip breaking difficulty when processing mild steel, obtains desirable chip breaking shape.
For solving the problems of the technologies described above; The technical scheme that the present invention adopted is: the improving one's methods of a kind of indexable aperture knife tool; Make carriage saddle mating surface 2 and vertical plane form an angle; Blade 3 angle that after installation, also thereupon tilts obtains being fit to the indexable aperture knife tool of processing mild steel.
The value of angle is α=arc tan [(D/2+K)/L].
The span of K is 0.01-0.03mm.
The value of angle is α=0.25 °---1 °.
Through analyzing the microscopic pattern of blade cutting edge; Find because behind the cutting edge process coating process; When blade becomes 90 ° with machined material; See the outermost point of blade cutting edge circular arc from the cutting edge cross section, the point that promptly blade is the sharpest is actual to have the distance of 0.04mm from machined material, is surperficial apart from the back knife face place extrusion sections of about 0.05mm by the cutting edge of blade in reality processing; Therefore when the metal material of processing high-ductility, can produce the problem of chip breaking difficulty, this problem can not solve through the adjustment cutting parameter cutting speed and the amount of feeding.
Improving one's methods of a kind of indexable aperture knife tool provided by the invention through making the carriage saddle mating surface angle that tilts, makes the blade angle that after installation, also thereupon tilts; Thereby the sharpest place of cutting edge of blade is contacted with rapidoprint; The cutting edge of blade is lower than machined surface in process, makes the back knife face not produce extruding, is directly cut by cutting edge; Thereby improved the sharpness of blade, reached desirable chip breaking effect.Blade is more durable in reality processing, processes easilyer, has reduced production cost, has improved operating efficiency.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is the front view of aperture knife tool among the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the left view of aperture knife tool among the present invention;
Fig. 4 is the machining state sketch map that adopts the inventive method.
The specific embodiment
In Fig. 2; Improving one's methods of a kind of indexable aperture knife tool; May further comprise the steps: make carriage saddle mating surface 2 and vertical plane form an angle; Blade 3 angle that after installation, also thereupon tilts, the value of α are α=arc tan [(D/2+K)/L], obtain being fit to the indexable aperture knife tool of processing mild steel.Said here vertical plane was meant the plane of carriage saddle 1 axis and former carriage saddle mating surface.
The value of angle is α=arc tan [(D/2+K)/L].H=D/2+K wherein, D is an edge width, in the corodrill of SANDVIK Coromant company 800.24 serial drill bits, cutting edge 4 width of the blade 3 of employing are 0.1mm.The span of K is 0.01-0.03mm.L is the length of blade, and in the drilling tool of φ 34, blade 3 length are 6.9mm.
Calculate α=0.498 ° through α=arc tan [(D/2+K)/L] formula---0.664 °.
The value of angle is α=0.25 °---1 °.Through test, angle is at 0.498 °---the best results between 0.664 °, but in α=0.25 °---also produce effect in the time of 1 °, so this span ought to be also within protection scope of the present invention.
Embodiment one
Adopt the corodrill 800.24 serial drill bits of SANDVIK Coromant company in actual use, adopt boring machine processing, Mo Shi taper shank model is 424.2-400M, and Material Processing is S20SX; The mild steel of phosphorus content 0.2% is produced φ 34-φ 55 holes, bores when being directly above than 1: 30 deeply; Cooling fluid has reached 6 hours former process time for the cutting emulsion, and often stifled bits; Length of chip reaches 15-20 times of its width, at carriage saddle 1 finish-milling, makes carriage saddle mating surface 2 and vertical plane have an angle; Angle is α=0.498 °, and this moment, H was 0.1/2+0.01=0.06mm, and the value of L is 6.9mm.
In Fig. 1, Fig. 3 and Fig. 4, blade 3 is pressed the original position clamping on carriage saddle 1, machined parameters is Vc=86m/min, fi=0.13-0.12mm, this moment, the sharpest place of cutting edge 4 was that circular arc directly contacts with processing work with the intersection on plane.Chip breaking ideal in the production process, high-pressure coolant enters into machined surface from outer drilling pipe 7, drives smear metal 5 and discharges from chip discharging tube 6; Smear metal 5 length are 3-4 times of its width; Cutting time shortens to 25 minutes, processes 7 deep holes in the past and just needs to change blade, after employing the inventive method; Can process 13 deep holes now, improve the durability of blade 3.
Embodiment two
Germany advanced in years special company shallow hole drilling and KUB, Centron deep hole series, the footpath is than 4: the aperture knife tool of D-11: D.Improve 1, reduced the cutting load of lathe by the inventive method; 2, because improved carriage saddle 1 makes blade 3 have better sharpness, the fineness of machined surface is improved; 3, prolonged the service life of blade 3, reached 25m-27m from working depth 12m service life.
Claims (1)
1. an indexable aperture knife tool improves one's methods; It is characterized in that may further comprise the steps: make carriage saddle mating surface (2) and vertical plane form an angle; Blade (3) angle that after installation, also thereupon tilts obtains being fit to the indexable aperture knife tool of processing mild steel;
The value of angle is α=arc tan [(D/2+K)/L] or is α=0.25 °-1 °;
Wherein D is an edge width, and L is the length of blade;
The span of K is 0.01-0.03mm;
Described vertical plane was meant the plane of carriage saddle (1) axis and former carriage saddle mating surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102726411A CN101700583B (en) | 2009-11-03 | 2009-11-03 | Improvement method of indexable aperture knife tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102726411A CN101700583B (en) | 2009-11-03 | 2009-11-03 | Improvement method of indexable aperture knife tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101700583A CN101700583A (en) | 2010-05-05 |
| CN101700583B true CN101700583B (en) | 2012-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102726411A Active CN101700583B (en) | 2009-11-03 | 2009-11-03 | Improvement method of indexable aperture knife tool |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204204U (en) * | 1987-05-11 | 1988-02-03 | 李雅城 | Lathe tool with tip sticked |
| CN1104138A (en) * | 1993-12-20 | 1995-06-28 | 克鲁伯·韦狄亚有限公司 | Spanend, especially cutting tool |
| DE10021879A1 (en) * | 2000-05-05 | 2001-11-08 | Komet Stahlhalter Werkzeuge | Solid drill for machine tools has two or more reversible cutting plates with main cutting blades and secondary cutting blades perpendicular thereto with a working angle of less than three point two degrees |
| JP2004114189A (en) * | 2002-09-25 | 2004-04-15 | Kyocera Corp | Throw-away drill and drill insert used therefor |
-
2009
- 2009-11-03 CN CN2009102726411A patent/CN101700583B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204204U (en) * | 1987-05-11 | 1988-02-03 | 李雅城 | Lathe tool with tip sticked |
| CN1104138A (en) * | 1993-12-20 | 1995-06-28 | 克鲁伯·韦狄亚有限公司 | Spanend, especially cutting tool |
| DE10021879A1 (en) * | 2000-05-05 | 2001-11-08 | Komet Stahlhalter Werkzeuge | Solid drill for machine tools has two or more reversible cutting plates with main cutting blades and secondary cutting blades perpendicular thereto with a working angle of less than three point two degrees |
| JP2004114189A (en) * | 2002-09-25 | 2004-04-15 | Kyocera Corp | Throw-away drill and drill insert used therefor |
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| Publication number | Publication date |
|---|---|
| CN101700583A (en) | 2010-05-05 |
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Effective date of registration: 20211202 Address after: 215400 building 18, No.11, Xingye South Road, Taicang Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: TAICANG RUIDING PRECISION MACHINERY TECHNOLOGY Co.,Ltd. Address before: 443300 second machining workshop of 403 plant, No. 93 Xiling Second Road, Yichang City, Hubei Province Patentee before: Chen Xiongshan |