SU686821A1 - Method of machining of nonrigid parts - Google Patents
Method of machining of nonrigid partsInfo
- Publication number
- SU686821A1 SU686821A1 SU772534633A SU2534633A SU686821A1 SU 686821 A1 SU686821 A1 SU 686821A1 SU 772534633 A SU772534633 A SU 772534633A SU 2534633 A SU2534633 A SU 2534633A SU 686821 A1 SU686821 A1 SU 686821A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- machining
- parts
- nonrigid
- force
- processing
- Prior art date
Links
Landscapes
- Turning (AREA)
Description
Изобретение относитс к металлообработке и может быть использовано при механической обработке деталей малой жест кости. Известен способ обточки на токарных станках длинных валиков и других деталей малой жесткости, при котором с целью уменьшени возможности по влени изгибающих деформаций и вибраций, к зад нему концу валика прикладьтают раст гивающее усилие путем обратного перемеще ни пиноли задней бабки 11. Вследствие того, что жесткость приспособлени , закрепленного в пиноли задней бабки дл обеспечени возможности обработки с раст жением, ниже жесткости узла передней бабки, по вл етс погрешность обработки в продольном направлении детали. Цель изобретени - повышение точнос обработки. Дл этого величину раст гивающего усили уменьшают, начина от среднего сечени детали и до конца обработки. На токарном станке, в двух обращенных друг к другу патронах закрепл ют заготовку. Обратным перемешением пино- ли задней бабки создают требуемую величину раст гивак цего усили . Обрабатывают резцом деталь до половины длины. Начина с половины длины детали, осуществл ют плавное линейное уменьшение усили раст жени до конца обработки, т.е. до момента перемещени резпа в крайнее левое положение, к ведущему токарному патрону. После обработки деталь освобождают из двух патронов и снимают со станка .. Режимы осуществлени способа: диаметр заготовки 5 мм, длина заготовки 250 мм, раст гивающее усилие 25О кг, число оборотов детали 160О об/мин, глубина -резани 0,25 мм, подача 0,15 мм/об. Усилие измен ют с 25О кг до 5О кг, начина с середины заготовки (по закону треугольника) в соответствии с эпюрой прогибов, возникающих от действи ради- .альной составл ющей силы резани .The invention relates to metalworking and can be used in the machining of small stiffness parts. A known turning method on lathes of long rollers and other parts of low rigidity, in which, in order to reduce the possibility of bending deformations and vibrations, a tensile force is applied to the rear end of the roller by reverse movement of the tailstock quill 11. Because of rigidity An attachment fixed to the tailstock quill to allow stretch processing, below the rigidity of the headstock assembly, the machining error in the longitudinal direction of the part appears. The purpose of the invention is to improve the processing accuracy. For this, the amount of tensile stress is reduced, starting from the middle section of the part and up to the end of processing. On the lathe, in two cartridges facing each other, the workpiece is fastened. By reverse mixing, the pinion of the tailstock creates the required amount of stretching force. Handle the cutter detail to half the length. Starting from half the length of the part, a smooth linear decrease in the tensile force until the end of the treatment, i.e. until the cutting of the cutting gear to the extreme left position, to the driving lathe chuck. After processing, the part is released from two cartridges and removed from the machine. Modes of implementation of the method: workpiece diameter 5 mm, workpiece length 250 mm, tensile force 25 O kg, part rotation speed 160 O rpm, cutting depth - 0.25 mm, feed 0.15 mm / rev. The force is changed from 25O kg to 5O kg, starting from the middle of the workpiece (according to the triangle law) in accordance with the curve of deflections arising from the effect of the radial component of the cutting force.
3686821 . 43686821. four
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772534633A SU686821A1 (en) | 1977-10-17 | 1977-10-17 | Method of machining of nonrigid parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772534633A SU686821A1 (en) | 1977-10-17 | 1977-10-17 | Method of machining of nonrigid parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU686821A1 true SU686821A1 (en) | 1979-09-25 |
Family
ID=20729234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772534633A SU686821A1 (en) | 1977-10-17 | 1977-10-17 | Method of machining of nonrigid parts |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU686821A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4655105A (en) * | 1984-08-31 | 1987-04-07 | Leemax Manufacturing Corporation | Workpiece and method of forming the same |
| US6202520B1 (en) | 1998-06-11 | 2001-03-20 | Car-Tec Company | Method and apparatus for machining highly concentric parts |
-
1977
- 1977-10-17 SU SU772534633A patent/SU686821A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4655105A (en) * | 1984-08-31 | 1987-04-07 | Leemax Manufacturing Corporation | Workpiece and method of forming the same |
| US6202520B1 (en) | 1998-06-11 | 2001-03-20 | Car-Tec Company | Method and apparatus for machining highly concentric parts |
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