SU921707A1 - Drill - Google Patents
Drill Download PDFInfo
- Publication number
- SU921707A1 SU921707A1 SU792709794A SU2709794A SU921707A1 SU 921707 A1 SU921707 A1 SU 921707A1 SU 792709794 A SU792709794 A SU 792709794A SU 2709794 A SU2709794 A SU 2709794A SU 921707 A1 SU921707 A1 SU 921707A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- drill
- working part
- angle
- length
- spiral groove
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2250/00—Compensating adverse effects during turning, boring or drilling
- B23B2250/16—Damping of vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
- B23B2251/043—Helix angles
- B23B2251/046—Variable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Description
(54) СВЕРЛО(54) DRILL
1one
Изобретение относитс к металлообработке и может быть использовано в конструкци х режущих инструментов.This invention relates to metalworking and can be used in cutting tool designs.
Известно сверло с применным углом наклона спиральной канавки по длине рабочей части 1.Known drill with the applied angle of the spiral grooves along the length of the working part 1.
Недостаток сверла заключаетс в том, что в процессе резани такое сверло раскручиваетс и удлин етс , что приводит к возникновению крутильных и осевых вибраций .The drawback of the drill is that during the cutting process such a drill spins and lengthens, which results in torsional and axial vibrations.
Цель изобретени - повышение надежности работы сверла и точности сверлени .The purpose of the invention is to increase the reliability of the drill and the accuracy of drilling.
Поставленна цель достигаетс тем, что угол наклона чгпиральной канавки выполнен плавно уменьшающимс от вершины сверла до середины рабочей части и плавно увеличивающимс от середины к хвостовику , причем в средней части его значение равно нулю.This goal is achieved by the fact that the angle of inclination of the spiral groove is made smoothly decreasing from the top of the drill to the middle of the working part and smoothly increasing from the middle to the shank, and in the middle part its value is zero.
На чертеже изображено предлагаемое сверло.The drawing shows the proposed drill.
Сверло имеет перь 1 и 2 спиральные канавки 3 и 4 рабочую часть 5 и хвостовик 6.The drill has feathers 1 and 2 spiral grooves 3 and 4 working part 5 and a shank 6.
Длина рабочей части 1р, длина средней части - 1е.The length of the working part 1p, the length of the middle part - 1e.
Спиральные канавки 3 и 4 на участке от вершины сверла до середины его рабочей части наклонены к оси под углом, значение которого плавно уменьшаетс ( + ы), а на участке от середины до хвостовика - плавно увеличиваетс (- ы). На длине средней части 1с угол наклона спиральных канавск равен нулю.The spiral grooves 3 and 4 in the section from the top of the drill to the middle of its working part are inclined to the axis at an angle, the value of which smoothly decreases (+ s), and in the section from the middle to the shank increases smoothly (-s). On the length of the middle part 1c, the angle of inclination of the spiral grooves is zero.
10 Такое сверло в процессе резани на длине рабочей части с положительным углом наклона ;о раскручиваетс и удлин етс , а на длине с отрицательным углом ш - закручиваетс и сжимаетс . В результате деформации на сверле компенсируютс и его режуща часть не и.меет осевых колебаний, а крутильные колебани уменьшаютс . Деформации компенсируютс как при глухом, так и при сквозном сверлении.10 Such a drill in the process of cutting on the length of the working part with a positive angle of inclination; o unwinds and lengthens, and on a length with a negative angle w - twists and compresses. As a result, the deformations on the drill are compensated and its cutting part does not have axial vibrations, and the torsional vibrations are reduced. The deformations are compensated for both with deaf and through drilling.
Предлагаема конструкци сверла обеспечивает повышение надежности и точности сверлени .The proposed drill design provides increased reliability and accuracy of drilling.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792709794A SU921707A1 (en) | 1979-01-09 | 1979-01-09 | Drill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792709794A SU921707A1 (en) | 1979-01-09 | 1979-01-09 | Drill |
Publications (1)
Publication Number | Publication Date |
---|---|
SU921707A1 true SU921707A1 (en) | 1982-04-23 |
Family
ID=20803970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792709794A SU921707A1 (en) | 1979-01-09 | 1979-01-09 | Drill |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU921707A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5704740A (en) * | 1995-06-26 | 1998-01-06 | Walter Ag | Drilling tool, particularly for metallic materials |
EP1694458A1 (en) * | 2003-12-17 | 2006-08-30 | Kennametal, Inc. | Twist drill |
US20120020751A1 (en) * | 2010-07-23 | 2012-01-26 | Suneel Bhaskar Bhat | Multi-directionally fluted rotary cutting tool |
US11911830B2 (en) | 2019-06-13 | 2024-02-27 | Kennametal India Ltd. | Indexable drilling inserts |
-
1979
- 1979-01-09 SU SU792709794A patent/SU921707A1/en active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5704740A (en) * | 1995-06-26 | 1998-01-06 | Walter Ag | Drilling tool, particularly for metallic materials |
EP1694458A1 (en) * | 2003-12-17 | 2006-08-30 | Kennametal, Inc. | Twist drill |
EP1694458A4 (en) * | 2003-12-17 | 2008-07-30 | Kennametal Inc | Twist drill |
US20120020751A1 (en) * | 2010-07-23 | 2012-01-26 | Suneel Bhaskar Bhat | Multi-directionally fluted rotary cutting tool |
US11911830B2 (en) | 2019-06-13 | 2024-02-27 | Kennametal India Ltd. | Indexable drilling inserts |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE9302971L (en) | Drill | |
SE8002974L (en) | MAGAZINE PROVIDED FOR DENTAL GRINDING BODIES, DRILLS, ROOT INSTRUMENTS AND ENDODONTIC AID | |
ATE106985T1 (en) | ROCK DRILLS. | |
SE451241B (en) | DRILL | |
CA2006939A1 (en) | Controlled path drill tool equipped with a variable geometry stabilizer and utilisation of said tool | |
SU921707A1 (en) | Drill | |
US5350298A (en) | Method and canal instrument for filling and/or coating the walls of an endodontic canal | |
ATE97842T1 (en) | FILE OR RASP. | |
SU1437160A1 (en) | Drill | |
SU795748A1 (en) | Heli drill | |
SU831413A1 (en) | Twist bit | |
SU1346352A1 (en) | Twist bit | |
DE3875710D1 (en) | ROCK DRILL. | |
Schoeck | The formation of dislocation rings on a crack front | |
SU884880A1 (en) | Chuck | |
SU975270A1 (en) | Tap | |
SU961879A1 (en) | Tap | |
SU912420A1 (en) | Tap for cutting precise threads | |
SU831415A1 (en) | Arrangement for drilling deep holes | |
SU852451A1 (en) | Boring bar | |
Rao et al. | A COMMENT ON THE AUTHORS'AGES FOR THE MOST-CITED PAPERS | |
SU585987A1 (en) | Twist drill | |
SU1106890A1 (en) | Wedge grip for cylindrical components | |
SU868130A1 (en) | Axial compressor impeller | |
SU701743A1 (en) | Twist drill |