SU660785A1 - Method of damping oscillation of rotating boring mandrel - Google Patents
Method of damping oscillation of rotating boring mandrelInfo
- Publication number
- SU660785A1 SU660785A1 SU772541345A SU2541345A SU660785A1 SU 660785 A1 SU660785 A1 SU 660785A1 SU 772541345 A SU772541345 A SU 772541345A SU 2541345 A SU2541345 A SU 2541345A SU 660785 A1 SU660785 A1 SU 660785A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- mandrel
- vibration damper
- damping oscillation
- rotating boring
- mass
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/02—Boring bars
- B23B29/022—Boring bars with vibration reducing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
- B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
- B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
- B23Q35/10—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only
- B23Q35/101—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool
- B23Q35/102—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool of one line
- B23Q35/104—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool of one line with coaxial tool and feeler
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Vibration Prevention Devices (AREA)
Description
1one
Изобретение относитс к станкостроению, а именно к способам гашени колебаний вращающихс расточных оправок, и может быть использовано при проектировании инструмента к расточным и алмазно-расточным станкам. ,The invention relates to a machine tool industry, in particular to methods of damping vibrations of rotating boring mandrels, and can be used in designing tools for boring and diamond boring machines. ,
Известны способы гашени колебаний вращаюн-1ихс расточных оправок путем размещени в их корпусе одно- или многомассовых цилиндрических виброгасителей 1.Methods are known for damping vibrations of rotary-1xs boring mandrels by placing single or multi-mass cylindrical vibration dampers 1 in their housing.
При возникновении колебаний энерги возмущающей силы рассеиваетс за счет ударного или динамического взаимодействи корпуса оправки с массой виброгасител .In the event of oscillations, the energy of the disturbing force is dissipated due to the shock or dynamic interaction of the frame of the mandrel with the mass of the vibration damper.
Недостатком известных устройств вл етс снижение эффективности гащени колебаний при уменьшении массы виброгасителей.A disadvantage of the known devices is the reduction of the vibration damping efficiency while reducing the weight of the vibration absorbers.
Цель изобретени - повышение эффекта гашени колебаний при ограниченных размерах виброгасителей.The purpose of the invention is to increase the effect of damping vibrations with limited dimensions of vibration dampers.
Дл этого по предлагаемому способу ось симметрии виброгасител располагают параллельно направлению действи воз.мупхающей силы при резании, а центр массы виброгасител смещают относительно оси вращени оправки.To do this, according to the proposed method, the axis of symmetry of the vibration damper is arranged parallel to the direction of action of the lifting force during cutting, and the center of mass of the vibration damper is shifted relative to the axis of rotation of the mandrel.
Способ по сн етс чертежом.The method is explained in the drawing.
На корпусе 1 расточной оправки размещены резец 2, грузы виброгасител 3 и 4 и резьбовые пробки 5 и 6.On the case 1 boring mandrel placed cutter 2, loads vibration damper 3 and 4 and threaded plugs 5 and 6.
При вращении оправки 1 грузы 3 и 4 прижимаютс центробежной силой к элементам оправки - резьбовым пробкам 5 и 6.When the mandrel 1 rotates, the weights 3 and 4 are pressed by the centrifugal force to the mandrel elements — threaded plugs 5 and 6.
Во врем обработки детали 7 резцом 2 и возникновении изгибных колебаний, наиболее характерных при тонкой расточке, между элементами 5 и 6 корпуса и грузами виброгасител 3 и 4, размещенными в отверстии корпуса, происход т соударени , завис щие от величины действующей на грузы центробежной силы.During machining of a part 7 by a cutter 2 and the occurrence of bending vibrations, most characteristic of a thin bore, between elements 5 and 6 of the housing and loads of vibration absorbers 3 and 4 placed in the opening of the housing, collisions occur depending on the centrifugal force acting on the loads.
Ось виброгасител при этом параллельнаThe vibration damper axis is parallel.
паправлению действи возмущающей силы.directing the action of the disturbing force.
Масса виброгасител уменьщаетс за счетThe mass of the vibration damper is reduced due to
увеличени радиуса R расположени центраincrease the radius R of the center
масс каждого груза.masses of each load.
В зависимости от фактически выбранного радиуса центра массы виброгасител ее величина может быть выбрана из соотнощени :Depending on the actually chosen radius of the center of mass of the vibration damper, its value can be chosen from the relation:
1 U) - углова скорость вращени оправки .1 U) is the angular rotation speed of the mandrel.
m - масса виброгасител ,m is the mass of the vibration damper,
R - радиус расположени центра массы виброгасител ,R is the radius of the center of mass of the vibration damper,
р- расчетна величина усили соударени .p is the calculated magnitude of the impact force.
Дл исключени дисбаланса, массы грузов 3 и 4 прин ты одинаковыми. Оправка может быть снабжена не только виброгасителем ударного действи , но и динамическим виброгасителем. При этом между наружной поверхностью грузов и стенками отверсти помещают упругую кольцевую прокладку .To eliminate imbalance, the masses of loads 3 and 4 are assumed to be the same. The mandrel can be equipped not only with an impact damper, but also with a dynamic vibration damper. At the same time between the outer surface of the cargo and the walls of the hole is placed an elastic annular gasket.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772541345A SU660785A1 (en) | 1976-08-18 | 1976-08-18 | Method of damping oscillation of rotating boring mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772541345A SU660785A1 (en) | 1976-08-18 | 1976-08-18 | Method of damping oscillation of rotating boring mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU660785A1 true SU660785A1 (en) | 1979-05-10 |
Family
ID=20732054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772541345A SU660785A1 (en) | 1976-08-18 | 1976-08-18 | Method of damping oscillation of rotating boring mandrel |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU660785A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016135157A1 (en) * | 2015-02-27 | 2016-09-01 | Rattunde & Co Gmbh | Method for reducing the regenerative chatter of chip-removal machines |
-
1976
- 1976-08-18 SU SU772541345A patent/SU660785A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016135157A1 (en) * | 2015-02-27 | 2016-09-01 | Rattunde & Co Gmbh | Method for reducing the regenerative chatter of chip-removal machines |
| US10562143B2 (en) | 2015-02-27 | 2020-02-18 | Rattunde Ag | Method for reducing the regenerative chatter of chip-removal machines |
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